Automatic valve.



J. B. MORGAN, DEGD. w. n. GALLAGHER, ADMINISTRATOR.

AUTOMATIC VALVE.

straits arr ihll FICE.

JOHN B. MORGAN, 0F DETROIT, MICHGAN, ASSIG-NOR Ol? ONE-TWENTIETH TO JOHN I-, KENNEDY AND ONE-TWENTIETH TO JOHN llt. HARRISON, BOTH OF EDE'IROIT, ILllCHIGllLN; WILLIAM HENRY GALLAGHER ,AMINISTRl-rTOR DF SAID MORGAN,

DECEASED.

.AUTOMATIC VALVE.

Speceation of Letters Patent.

Patented July 2,2, iltlll,

Application filed June 2li, 1911. Serial No. 635,6?9.

To all whom it may @omero Be it known that l, JOHN ll. h'oneaw, a citizen et the United States ot iinerira` re siding at Detroit, in the county et lllayne and State et hiriehigan, have invented eertain new and useful improvements iu i`li1itomatie Valves, oit which the iillowingis a specification, reference being had therein to the accompanying drawings.

The invention relates to autoinatie valves sueh as are employed in eonneetion with steam heating; systems et the vaeiuun type, and the invention consists in the construe tion as hereinafter set itorth.

ln the dii'awings Figure l is a eentral longitudinal section through the valve; Fig. i2 is a. perspective view ot the adjustable weighted lever; and Fig'. 3 is a perspeetiife view oit the valve.

lt is one ot the objects ot the invention to obtain a Construction oit automatic `valve which dispenses with the use ot springs, and turtlier to provide a ineans ot adjustment by whichV the operation oi." the valve may be varied. rllhus in vacuum steam systems where a number ot such autoniatie valves are eniployed at ditterent distances 'troni the vacuum punip, it necessary to adjust the valves nearest the pumps ditlerently troni those at a greater distance.

ln detail, l is the outer easing' whieh at its upper end is provided with a rennwable Cap B.

C is a valve seat which is detaehably en- `gagged with. an apertured partition D within the easing and .may be renioved or inserted through the opening Closed by the cap l.

lll is a valve upon the pendent stein l" which is pivotally Connected at its upper end to a lever rihis lever is tule/ruined at li within the easingl and is provided with ay weight l on the opposite side oit the tuleruni troni the valve and which yieldably holds the valve to its seat.

To provide means tor varying.;- the pres sure at which the valve lil will open7 the weight lt is adjustably secured upon theI lever (l, preii'erabljvf by provivfling said weight with a slotted arin il which is secured to the lever G by a Clamping serew ll; being;` held in alineinent by a guide lug' L engaging; the slot lli/l. rlhe arm J is also preferably provided with an upwardly extending portion hl which terms an actuating ineniber tor adjusting the weight when the screw hl is released. t further `range of adpistuient is obtained by the provision ot auxiliary weights (l. These are preferably detaehably secured to the weight l and as shown the weigrht tl is provided with a stein Q l wing a prejecting;l portion Q tor engaging' an aperture in the weight l. 'the end oil the stein Q. furnis a handle. by which the weight t) may be engaged or disengaged.

The valve lil is preteraliily provided with a. spherical bearing' laee which engages an annular sharpened edge or bearing.;v ll on the valve seat formed by oppositely beveled tacos therein". This forms practically a line contact, the bearin surface being` so restricted that the toreo exerted by the valve thereagrainst is more etlleetive Vthan with a larger surface, llurtherniore, on account oit the limited surtaee Contact there is less danger ot adhesion ot the valve to its seat and a lesser 'torre is neeesary to break this adhesiou.

lilith valvesl oit this type it is neeessary to provide a restricted air vent or by-pass around the valve. For this purpose l have provided a tubular stein V which engages an aperture lV through the partition said stein being' slotted above its point oit engageinent at le; to :torni a vent aperture. This vent aperture is maintained tree trein the lodgnient ot incrustation by providing' an extension Y ot' the lever G, the end et whieh proierts into the slot X and thus the inovenient ot the valve toward and troni its seat will eau se the h'ng'er Y to travel in the slot X and Clear the saine troni any aeeiunulation oit sediment This luy-pass is ther-etere torined by the aperture ll and the slotted stein and e mn'iunieates with the easing)y at a point above the high .level to whieb the .liquid will. rise in the normal operation o' tl e system.

The construction is sueh that all ot the workin@y parts ot the valve may be removed or inserted through the upper end 0l the ease when the cap B is ren'ioved, and this avoidsI the necessity ot disei'inneetiug the valve troni the system when it is necessary to uralte adjustment or repairs.

To permit ot removingthe mechanism troni within the valve ease the stein F tor the valve has a hook F tor pivotally en gag-ing the saine with a pin F2 on the lever G, and said lever is fulcruined upon the pin I-l which extends through the case and is removable from outside thereof. Thus by withdrawing the pin H and unliooking the stem F all the parts of the mechanism may be withdrawn from the case when the cap B is removed.

ln the operation of the parts, when the water of condensation within the casing becomes sufficient to overcome the weights O and l, the valve will lower away from its seat, which will rock the levei G, but the opening movement of the valve is limited by the projection Y engaging the upper end of the by-pass YV. After the water of condensation has discharged the weights O and l will return the lever G to its normal position, yieldably drawing the valve to its seat.

That l claim as my invention is:

l. The combination with a case, of a lever therein, a valve actuated by said lever, a partition in said case having a port closed by said valve and an auxiliary7 port, a slotted stem adjustably secured in said auxiliary port. to vary the restriction of the passage, and an extension of said lever engaging the slot in said stem and operating in the movement of the level' to clear said slot from obstruction.

2. rlhe combination with a case, of a valve therein, a weighted lever pivotally connected to said valve, a partition having a port closed by said valve and an auxiliary port, a slotted stem adjustable to variably restrict said port, and a ling r projecting from said lever and engaging the slot in said stem, for the purpose described.

8. The combination with a case, of a valve therein, a partition in said case having a port closed by said valve, a weighted lever vfulcrunied within the case and operatively connected to the valve, said weighted lever acting normally to close the valve, and an auxiliary by-pass having the upper end thereof positioned to engage and limit the travel of the lever in one direction.

t. The combination with a case, of an upwardly seating valve therein, a partition in said case having a port closed by said valve, a lever pivo-ted intermediate its ends, a pendent stem for attaching the valve to the lever secured to the latter upon one side of the lever pivot, a weight acting on the lever upon the opposite side of said pivot to yieldably draw the valve to its seat, said lever having a portion projecting beyond the point of engagement of the stem therewith, and an auxiliary by-pass having the upper end thereof positioned to engage said extension and limit the travel of the lever in the opening movement of the valve.

5. The combination with a case, of an upwardly seating valve therein, a partition in said case having a port closed by said valve, a lever pivoted intermediate its ends, a pendent stem for attaching the valve to the level' secured to the latter upon one side of theA lever pivot, a weight acting onJ the lever upon the opposite side of said pivot to yieldably draw the valve to its seat, said lever lia-ving a portion projecting beyond the point of engagement of the stein therewith, and means upon the casing for engaging said lever projection in the opening movement of the valve, for the purpose described.

G. The combination with a case, of a valve therein, a pivoted counter-weighted lever connected to said valve, a partition having i a poi-t closed by said valve, slotted 1oy-pass` and a linger projecting from said lever and positioned within said slot, for the purpose W. J. BnLiiNi-xr, JAMES l). BARRY.

Copies of this patent may be obtained for ve cents each, by adressing the Commissioner of Patents,

Washington, D. C. 

